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Techno-economic modelling of a Power-to-Gas system based on SOEC electrolysis and CO2 methanation in a RES-based electric grid

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Techno-economic modelling of a Power-to-Gas system based

on SOEC electrolysis and CO2 methanation in a RES-based

electric grid

Authors

Fabio Salomone, Emanuele Giglio, Domenico Ferrero, Massimo Santarelli, Raffaele Pirone, Samir Bensaid

Publication date

2019/12/1

Journal

Chemical Engineering Journal

Volume 377 Pages 120233 Publisher Elsevier Description

Renewable energy sources (RES) are growing rapidly as an alternative to fossil energy sources in order to disjoin the society from carbon sources. Wind and photovoltaic power generation is intermittent due to weather conditions. Therefore, remarkable centrality is given to the storage of the electric excess of production, and Power-to-Gas (P2G) systems seem to be one of the most promising technologies to achieve this purpose. In the case analysed in this research, a high temperature electrolyser based on solid oxide cells technology was considered, coupled to catalytic reactors for the hydrogenation of carbon dioxide into methane. The product is a synthetic natural gas (SNG) which could by directly injected into the natural gas distribution network.

This work investigates the coupling between a completely RES-based electric profile in a future scenario and a P2G plant to perform a comprehensive technical …

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